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F0: usart + DMA working

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This commit is contained in:
Thales Fragoso
2021-07-04 18:34:37 -03:00
committed by Bob McWhirter
parent a56ddfdc04
commit 91521a86a0
3 changed files with 36 additions and 15 deletions
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24
embassy-stm32/src/bdma/v1.rs
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@ -78,7 +78,6 @@ pub(crate) async unsafe fn transfer_p2m(
})
.await;
on_drop.defuse();
// TODO handle error
assert!(res == CH_STATUS_COMPLETED);
}
@ -128,7 +127,6 @@ pub(crate) async unsafe fn transfer_m2p(
})
.await;
on_drop.defuse();
// TODO handle error
assert!(res == CH_STATUS_COMPLETED);
}
@ -150,7 +148,6 @@ unsafe fn on_irq() {
STATE.ch_wakers[n].wake();
}
}
};
}
}
@ -162,6 +159,13 @@ pub(crate) unsafe fn init() {
crate::interrupt::$irq::steal().enable();
};
}
pac::peripherals! {
(bdma, DMA1) => {
critical_section::with(|_| {
pac::RCC.ahbenr().modify(|w| w.set_dmaen(true));
});
};
}
}
pub(crate) mod sealed {
@ -285,3 +289,17 @@ pac::interrupts! {
}
};
}
#[cfg(usart)]
use crate::usart;
pac::peripheral_dma_channels! {
($peri:ident, usart, $kind:ident, RX, $channel_peri:ident, $dma_peri:ident, $channel_num:expr) => {
impl usart::RxDma<crate::peripherals::$peri> for crate::peripherals::$channel_peri { }
impl usart::sealed::RxDma<crate::peripherals::$peri> for crate::peripherals::$channel_peri { }
};
($peri:ident, usart, $kind:ident, TX, $channel_peri:ident, $dma_peri:ident, $channel_num:expr) => {
impl usart::TxDma<crate::peripherals::$peri> for crate::peripherals::$channel_peri { }
impl usart::sealed::TxDma<crate::peripherals::$peri> for crate::peripherals::$channel_peri { }
};
}